CVE-2019-11039
Function iconv_mime_decode_headers() in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 may perform out-of-buffer read due to integer overflow when parsing MIME headers.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Function iconv_mime_decode_headers() in PHP versions 7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below 7.3.6 may perform out-of-buffer read due to integer overflow when parsing MIME headers. This may lead to information disclosure or crash.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 3.13% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125, CWE-190
- Affected
- php/php · redhat/software collections · opensuse/leap · debian/debian linux
- Source
- security@php.net
EPSS 3.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00029.htmlMailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2519Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3299Third Party Advisory
- https://bugs.php.net/bug.php?id=78069Exploit, Patch, Vendor Advisory
- https://seclists.org/bugtraq/2019/Sep/35Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Sep/38Mailing List, Third Party Advisory
- https://www.debian.org/security/2019/dsa-4527Third Party Advisory
- https://www.debian.org/security/2019/dsa-4529Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00029.htmlMailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2519Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3299Third Party Advisory
- https://bugs.php.net/bug.php?id=78069Exploit, Patch, Vendor Advisory
- https://seclists.org/bugtraq/2019/Sep/35Mailing List, Third Party Advisory
- https://seclists.org/bugtraq/2019/Sep/38Mailing List, Third Party Advisory
- https://www.debian.org/security/2019/dsa-4527Third Party Advisory
- https://www.debian.org/security/2019/dsa-4529Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.